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Question:Host was at 100% cpu when use Openstack Nova Essex

To: "openstack" <openstack@xxxxxxxxxxxxxxxxxxx>
From: "??????" <zhangjl@xxxxxxxxxxx>
Date: Wed, 20 Mar 2013 11:07:47 +0800

Hello ,all,

    There is a problems botherd me.My hosts cpu always at 100% cpu because of the threads
    of nova-compute,nova-network and nova-scheduler.If this occurs,the nova commands cannot
    be use anymore,    especially operate the vm instances and networks.
    The follows are results of top:

    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                
 3696 nova      20   0  379m  58m 5232 S  99.0  3.8   1932:21 nova-network                                                           
 3676 nova      20   0 1890m  86m 7716 S  103.3  2.1   2891:31 nova-compute         

    And the follow is my nova.conf:
    http://pastebin.com/6xW9wCFW
    
    Is anyone can help me?
    
    Waiting your reply.Thanks
    
------------------
 Best Regards
  
 ZhangJialong